SCREEN DIRT RETARDATION AP PARATtJS
Original Publication Date: 1976-Jul-31
Included in the Prior Art Database: 2004-Mar-27
Xerox Disclosure Journal
employed in an electrophotographic printing machine optical system. This may be prevented by interposing a suction device 10 between developer unit 12 and screen 14. Suction device 10 is positioned closely adjacent to photoconductive member 16 and acts as a baffle to interrupt the toner cloud migration from developer unit 12 to screen 14, Alternatively, positive air pressure rather than negative air pressure may be employed to prevent the migration of toner particles from developer unit 12 to screen 14.